Brzeźnica [bʐɛʑˈɲit͡sa] is a village in the administrative district of Gmina Brańsk, within Bielsk County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 4 kilometres (2 mi) south of Brańsk, 27 km (17 mi) west of Bielsk Podlaski, and 51 km (32 mi) south-west of the regional capital Białystok.